Purpur/patches/server/0017-EntityMoveEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Tue, 11 Feb 2020 21:56:48 -0600
Subject: [PATCH] EntityMoveEvent


diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 279662570c0bbd6c00b5732881cd35dfe694b25d..50cb2551598101d1c12007c53421b6c2f59ce2aa 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -2813,6 +2813,20 @@ public abstract class EntityLiving extends Entity {
 
         this.collideNearby();
         this.world.getMethodProfiler().exit();
+        // Purpur start
+        if (((WorldServer) world).hasEntityMoveEvent) {
+            if (lastX != locX() || lastY != locY() || lastZ != locZ() || lastYaw != yaw || lastPitch != pitch) {
+                Location from = new Location(world.getWorld(), lastX, lastY, lastZ, lastYaw, lastPitch);
+                Location to = new Location (world.getWorld(), locX(), locY(), locZ(), yaw, pitch);
+                net.pl3x.purpur.event.entity.EntityMoveEvent event = new net.pl3x.purpur.event.entity.EntityMoveEvent(getBukkitLivingEntity(), from, to.clone());
+                if (!event.callEvent()) {
+                    setLocation(from.getX(), from.getY(), from.getZ(), from.getYaw(), from.getPitch());
+                } else if (!to.equals(event.getTo())) {
+                    setLocation(to.getX(), to.getY(), to.getZ(), to.getYaw(), to.getPitch());
+                }
+            }
+        }
+        // Purpur end
         if (!this.world.isClientSide && this.dO() && this.aG()) {
             this.damageEntity(DamageSource.DROWN, 1.0F);
         }
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index e12fecf47798f638b85e7c6d54055a526097811c..d79cf993cdadfe7fadd6c7e65b9fc691a298c702 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1398,6 +1398,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
         while (iterator.hasNext()) {
             WorldServer worldserver = (WorldServer) iterator.next();
             worldserver.hasPhysicsEvent =  org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper
+            worldserver.hasEntityMoveEvent = net.pl3x.purpur.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Purpur
             TileEntityHopper.skipHopperEvents = worldserver.paperConfig.disableHopperMoveEvents || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper
 
             this.methodProfiler.a(() -> {
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index efe2a9ad2ece23bd71f4ad63b2c6f54f42345b55..2315c71465e4c1ea00a4c355b43de1e3fb0ca995 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -101,6 +101,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
     public final Convertable.ConversionSession convertable;
     public final UUID uuid;
     boolean hasPhysicsEvent = true; // Paper
+    boolean hasEntityMoveEvent = false; // Purpur
     private static Throwable getAddToWorldStackTrace(Entity entity) {
         return new Throwable(entity + " Added to world at " + new java.util.Date());
     }